Picture-exhibition device.



1 J. H. 'GRAVELL -& G. D. FARWE LLP I I PICTURE EXHIBITION DEVICE.

APPLICATION FILED NOV. 1,1907.

Patnted Oct. 6,190 8. I,

2 SHEETS-BHEET 1.

. I M 2 INVENTORS v ATTORNEY J. H. GRAVELL & e. D FARWE LL PICTURE EXHIBITION DEVICE. I APPLIUATION I ILBDJIOV. 1, 1907.

Patented 0ct.6,19bs.

2 SHEETS-SHEET 2.

j INl/ENTORS U ITED STATES PATENT OFFICE. I A

- JAMES H.'GRAVELL, or PHILADELPHIA, PENNSYLVANIA, AND GEORGE 15. FARWELL, or BRIDGEPORT, CONNECTICUT, ASSIGNORS or oNE-THI'RD To PERCY c. mawntn'or To an whom it mag concern:

BRIDGEPOBT, GONNECTICU'I.

Meme-amnion DEVICE.

Specification of Letters Patent.

rammed Oct. e, 1908.

Application filed November 1, 1907. Serial No. 400,806.

Be it known that we, JAMES H. GRAVELL and GEORGE D. FARWELL, of Philadelphia,

' Pennsylvania, and Bridge ort, Connecticut,

respectively, citizens of t e United States, have invented a new and useful Picture-Exhibition Device, of which the following is a specification.

This invention has reference to a com bined auto vehicle and picture exhibition device, and has for its primary objects the provision of means whereby a transportation vehicle is combined with a picture exhibition device, and a motor common to the vehicle and exhibition device whereb through the instrumentality of 'said' addltlonal means, the same motor may be employed for actuating the vehicle, and also the picture exhibition device, and whereby also the vehicle and the picture exhibition devicemay be operated in alternation if desired, or, if preferred, may becaused to 0perate together, without interfering, the one .with the other.

A further object of this invention is the provision of an exhibition device secured to the vehicle'above referred to, in the-form of a trailer in certain relation to the picture exhibition device, whereby pictures or advertising matter may be exhibited on the said exhibition trailer as the. vehicle is progressing along the street or highway.

The-above, as well as other objects which will hereinafter appear, we attain by means of the construction which we have illustrated in-preferred form in the accompany' ing drawings wherein- 1 Figure 1 shows in side elevation an apparatus embodying our improvement;

Figure 2 indicates certain details of the mechanism employed in connection with such improvement, and

Figure 3 is another view, in side elevation, of a part of the apparatus, indicating certain of the operative parts shown in Figure 2,. as

applied to the vehicle indicated in side ele- ..vation in Figure 1.

Referring now more particularlyto' Figures 1 and 3.it will be seen that we have therein shown a self-propelled vehicle or au tomobilehayjng a pair of driving wheels indicated'at 1 constructed to be driven in any ordinary -or preferred manner: as" by the hibit mov counter shaft 2, from a driving motor 3 through the instrumentality of a clutch device 4 adapted to be enga ed or disengaged at will wit the balance w eel 5.

Upon the motor shaft 6 is mounted a loose ear or chain wheel 7 which by means of a o ain 8 is arranged to drive a gear 9 carried upon the shaft of a generator 10, the actuation of the generator being sepured when the ositive'clutch 11 (see Figure 2) is thrown into action by means of'the hand lever 12. The friction clutch 4 is constructed to be actuated by the lever 13, and as shown, may be thrown into engagement at the same time as the positive clutch 11, or alternately therewith;

Referring now again to Figures 1 and 3, it will be seen that upon the rear of the vehicle, in any preferred place or manner, we mount the picture exhibiting device which may be of any preferred or known construction, indicated at 14, and which is provided with an electric lighting apparatus suchas is ordinarily useddiagrammatically'repre sented at 15and connected with a governin switch-board 16 by means of a fiexible- 1 ca le 17 as shown.- The switch-board 16 is connected to the generator in the usual man- 'ner, and by the usual connections.

It is evident that by the. use of a longer flexible cable 17 the picture exhibiting de vice indicated at 14 may be placed inside of a building, with the vehicle outside,-and the engine of the vehicle utilized to generate the current for the light in the exhibition of the pictures. t

It may occur that it' is desired to have the exhibition screen 18 carried with the vehicle in position where it'may 'be used while the vehicle is in motion, in which case we have made provision by mountin the screen as shown, upon'a truck 19 provi ed with a baseboard or frame 20 pivotally secured at- 21 to the automobile or self-propelled vehicle, forming thus a trailer means which may be used in the place indicated or elsewhere, as desired.

By the arrangement shown it will be evident that we have made it possible to expicture devices and other like exhibitions with any electric light supply, or in small y means of electric light, in places such as halls which are not connected.

. proved apparatus we have provided a means or utilizm the same motor for propellingla vehicle an for actuating a picture exhi ition device with instrumentalities suitably constructed to operate, so that the said mechanisms and, devices can be used in alternas tion or conjointl as desired.

Having thus described our-invention and illustrated its use, what We claim as new and desire to secure by Letters Patent, is the following:

1. he combination of a self-propelled vehicle, a motor therefor, an electric generator,

means for transmitting power from the motor to the generator, a picture exhibition outfit, and means for connecting the generator and picture exhibition outfit, with mechanism whereby the same motor is utilized for propelling the vehicle and for driving the generator, substantially as described.

2. The combination with a selfropelled vehicle, of an exhibition screen tra' er there-. for, and means carried by the vehicle wherebypictures may be thrown upon the screen,

tion mechanism at will, substantially as described.

In testimony whereof we have hereunder signed our names in the presence of the subscribed witnesses.

J. H. GRAVELL. GEORGE D. FARWELL. Witnesses as to J. H. Gravell:

F. H. Hloxs, M. PRATT. Witnesses as to George D. Farwell:

R. G. Asmnm, WM. M. JONES. 

